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(1/4+1/4乘99)除以0.2怎么简便
人气:463 ℃ 时间:2020-09-18 21:19:46
解答
(1/4+1/4乘99)除以0.2
=1/4*(1+99)/0.2
=0.25*100/0.2
=25/0.2
=125
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